I added a filter on the memory selection page so you can filter by the number of modules - short of customizing the sort, does that help?
I also added a filter for motherboards on the number of Sata 3Gb/s and 6Gb/s ports (I'm assuming you meant motherboards).
(And I haven't forgotten about your other feature requests - they're on the TODO list, but require a bit more work to get them in.)

Support for other countries is definitely on the TODO. I've got requests for Australia, Canada, and the UK down. If you would like support for another country, feel free to send me a note. (And if you do, let me know who your preferred merchants are.)

PLEASE. DO. THIS. I'm in Brazil and though I've requested help on buying parts here, nobody answered. The taxes on imported goods are staggering (60% + 6% financial tax on credit card use out of Brazil) so you can imagine the price spread between US and Brazil (plus int'nl shipping)

The country doesn't even manufacture the screws on a desktop case but beats the shit out of consumers - and don't get me started about the greediness of local distributors that take advantage of this to rip you even more.

A mediocre build here costs as much as a state of the art in the US.

So, if anyone has good advice about reasonable prices here, is most welcome.

PLEASE. DO. THIS. I'm in Brazil and though I've requested help on buying parts here, nobody answered. The taxes on imported goods are staggering (60% + 6% financial tax on credit card use out of Brazil) so you can imagine the price spread between US and Brazil (plus int'nl shipping)

The country doesn't even manufacture the screws on a desktop case but beats the shit out of consumers - and don't get me started about the greediness of local distributors that take advantage of this to rip you even more.

A mediocre build here costs as much as a state of the art in the US.

So, if anyone has good advice about reasonable prices here, is most welcome.